The 'Hangover II' actor - who plays Alan in the comedy movie - is not always in the mood to have his photograph taken with fans, and it leads him to acting like a "giant baby" about it.

He said: "I'm terrible about people wanting to take pictures with me.

"I'm a giant baby about it. They treat you like a cartoon. There's nothing you can do except make light of it. That's if I'm in the mood. Sometimes I get super-bummed."

The 41-year-old actor-and-comedian lasted just two weeks as a musical guest on 'Saturday Night Live', which once involved pitching a sketch to a young Britney Spears that involved her being interviewed and then suddenly start bleeding from the mouth, but it did not go down too well.